The interior of the Phra Mandapa houses the sacred Buddha's Footprint, intricately inscribed with 108 auspicious symbols and surrounded by the world's only pure silver mat, meticulously woven to reflect the pinnacle of spiritual devotion. The ceiling above is a breathtaking display of mother-of-pearl inlay and gilded Thai motifs that shimmer beautifully in the light, creating an atmosphere of profound sanctity and peacefulness. Visitors are invited to pay their respects and apply gold leaf to the Footprint for supreme blessings, all while being enveloped by the subtle fragrance of incense and flowers within this masterpiece of high Thai architectural art.